# The following bugs have been fixed:* Update time display in background. (Bug 1275)* Wireshark is unresponsive when capturing from named pipes on Windows. (Bug 1759)* Tshark returns 0 even with an invalid interface or capture filter. (Bug 4735)

# New and Updated Features* The packet list internals have been rewritten and are now more efficient.* Columns are easier to use. You can add a protocol field as a column by right-clicking on its packet detail item, and you can adjust some column preferences by right-clicking the column header.* Preliminary Python scripting support has been added.* Many memory leaks have been fixed. * Wireshark 1.4 does not support Windows 2000. Please use Wireshark 1.2 or 1.0 on those systems.* Packets can now be ignored (excluded from dissection), similar to the way they can be marked.* Manual IP address resolution is now supported.* Columns with seconds can now be displayed as hours, minutes and seconds.* You can now set the capture buffer size on UNIX and Linux if you have libpcap 1.0.0 or greater.* TShark no longer needs elevated privileges on UNIX or Linux to list interfaces. Only dumpcap requires privileges now.* Wireshark and TShark can enable 802.11 monitor mode directly if you have libpcap 1.0.0 or greater.* You can play RTP streams directly from the RTP Analysis window.* Capinfos and editcap now respectively support time order checking and forcing.* Wireshark now has a "jump to timestamp" command-line option.* You can open JPEG files directly in Wireshark.